Function Reference

_DateDiff

Returns the difference between 2 dates, expressed in the type requested

#include <Date.au3>
_DateDiff ( $sType, $sStartDate, $sEndDate )

Parameters

$sType

One of the following:
D = Difference in days between the given dates
M = Difference in months between the given dates
Y = Difference in years between the given dates
w = Difference in Weeks between the given dates
h = Difference in hours between the given dates
n = Difference in minutes between the given dates
s = Difference in seconds between the given dates

$sStartDate

Input Start date in the format "YYYY/MM/DD[ HH:MM:SS]"

$sEndDate

Input End date in the format "YYYY/MM/DD[ HH:MM:SS]"

Return Value

Success:

Difference between the 2 dates.

Failure:

0 and sets the @error flag to non-zero.

@error:

1 - Invalid $sType
2 - Invalid $sStartDate
3 - Invalid $sEndDate

Remarks

Valid dates must be between "2000/01/01 00:00:00". and "3000/12/31 23:59:59"

See _DateTimeSplit() for other possible variations of the start and end date formats.

Related

Example

#include<Date.au3>#include<MsgBoxConstants.au3>; Calculated the number of seconds since EPOCH (1970/01/01 00:00:00)Local$iDateCalc=_DateDiff('s',"1970/01/01 00:00:00",_NowCalc())MsgBox($MB_SYSTEMMODAL,"","Number of seconds since EPOCH: "&$iDateCalc); Calculated the number of Hours this year$iDateCalc=_DateDiff('h',@YEAR&"/01/01 00:00:00",_NowCalc())MsgBox($MB_SYSTEMMODAL,"","Number of Hours this year: "&$iDateCalc)